IBM 9009-41A Manual page 77

Figure 46. PCIe adapter slot locations and locations of the LEDs in a stand-alone system.
3. Use the service indicator light-emitting diodes (LEDs) to help identify the part. For instructions, see
Identifying a part (www.ibm.com/support/knowledgecenter/POWER9/p9haj/sal.htm).
4. If applicable, open the rack door at the rear of the system.
5. If necessary to view the identify LEDs or to manage cables at the rear of a rack-mounted system,
open the cable management arm by completing the following steps:
Note: If you are removing or replacing the system backplane, you must open the cable management
arm.
a) Release the mounting bracket from the cable management arm assembly by pressing the
indentation (A) on the inner cable management arm tab.
The cable management arm releases from the outer mounting bracket in the direction shown.
Installing, removing, and replacing PCIe adapters for the 9009-41A, 9009-42A, and 9223-42H system 63